Business Days in May 2027 for United States
May 2027 has 20 business days under the US federal holiday calendar. May 2027 contains one US federal holiday on a weekday. The month covers 31 calendar days, of which 10 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of business days in United States.
business days
20
Calendar Days
31
Weekend Days
10
federal holidays
1
Work Weeks
4.0
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
1 wknd | ||||||
2 wknd | 3 | 4 | 5 | 6 | 7 | 8 wknd |
9 wknd | 10 | 11 | 12 | 13 | 14 | 15 wknd |
16 wknd | 17 | 18 | 19 | 20 | 21 | 22 wknd |
23 wknd | 24 | 25 | 26 | 27 | 28 | 29 wknd |
30 wknd | 31 Memorial Day |
federal holidays in May 2027
United States May deadlines
May carries Memorial Day at month-end, the unofficial start of summer logistics planning. Public companies wrap Q1 earnings season in the first half of the month. Form 5500 ERISA prep cycles begin for plans with December year-ends, with a July 31 filing deadline (October 15 with extension under Form 5558).
Day-of-week distribution
The count of each weekday in May 2027. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific weekday landing in-month.
| Day | Count |
|---|---|
| Monday | 5 |
| Tuesday | 4 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 5 |
| Sunday | 5 |
United States reporting cycles and business-day rules
US business-day reporting cycles cluster on the 10th, 15th, and 25th of each month under IRS deposit schedules and SEC reporting rules. The Federal Reserve operates Fedwire on a 22-hour daily window with closure on all 11 federal holidays, so Saturday-falling holidays observed on Friday compress the prior week's settlement. ACH NACHA rules give a two-business-day standard for credit transfers and same-day options at three daily windows. Court filing deadlines under FRCP Rule 6 count business days for periods of 11 days or less and calendar days for longer windows.
May 2027 business days compared by country
Working-day counts vary across countries because each country observes its own public holidays. The table below puts United States alongside the other ten supported holiday calendars for May 2027.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States (this page) | 20 | Memorial Day |
| 🇬🇧United Kingdom | 19 | Early May Bank Holiday, Spring Bank Holiday |
| 🇨🇦Canada | 20 | Victoria Day |
| 🇦🇺Australia | 21 | None |
| 🇮🇳India | 20 | Eid ul-Adha |
| 🇵🇭Philippines | 20 | Eid'l Adha (approximate) |
| 🇫🇷France | 19 | Ascension, Lundi de Pentecôte |
| 🇩🇪Germany | 19 | Christi Himmelfahrt, Pfingstmontag |
| 🇯🇵Japan | 18 | Constitution Memorial Day, Greenery Day, Children's Day |
| 🇲🇽Mexico | 21 | None |
| 🇸🇬Singapore | 19 | Hari Raya Haji (observed) (approximate), Vesak Day (approximate) |
How May 2027 compares year over year
May 2026 also had 20 business days, so working capacity is unchanged year over year. On the surrounding months, April 2027 has 22 business days and June 2027 has 21. Looking forward, May 2028 has 22 business days under the same US federal holiday calendar.
Using this calculator in United States
A receivables analyst at a Long Beach freight forwarder uses the 20-day count in May 2027 to flag invoices whose Net 30 due dates land on Memorial Day or Independence Day, then reschedules ACH originations to clear before the holiday cutoff. A federal contracts officer uses the count to track FAR 32.905 prompt-payment windows across multi-task-order proposals. A Connecticut public-school district payroll lead uses the day-of-week distribution to schedule biweekly direct-deposit cutoffs on Wednesdays and avoid Federal Reserve closures.
For informational purposes only
This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.